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Configuration File Keyword Reference - Terminal Emulation Settings

Items in this list configure terminal emulation settings for ssh and ssh2 command line sessions. These settings can be implemented by adding them manually to the Secure Shell configuration file, or by using the -o switch on the command line.

note

These settings affect command line terminal sessions only; they have no affect on terminal sessions running in the the client user interface.

The configuration file is organized into sections, each identified by a Host keyword. Each section specifies settings to be used for all connections made using the specified host or SSH configuration scheme.

The configuration file consists of keywords followed by values. Configuration options may be separated by white space or by optional white space and exactly one equal sign (=). Keywords are case-insensitive and arguments are case-sensitive.

Any line starting with a number sign (#) is a comment. Any empty line is ignored.

Quotation marks are required around string arguments that include spaces. Terminal emulation keywords and arguments are not case-sensitive.

note

Keywords for configuring Secure Shell connections are available in a separate list. See Configuration File Keyword Reference - Secure Shell Settings.

AnswerBackMessage

When AutoAnswerback is set to 'yes', AnswerBackMessage specifies the string that is sent to the host in response to an answerback request (the ENQ character-ASCII 5).

Possible String Values: A string value of up to 30 characters. Default: "" (null string) Sample syntax:

AutoAnswerback yes
AnswerbackMessage "My answer back string"

AutoAnswerback

When AutoAnswerback is set to yes, the message string specified using the AnswerBackMessage keyword is automatically sent to the host after a connection is made.

Possible Values: yes or no Default: no Sample syntax:

AutoAnswerback yes
AnswerbackMessage "My answer back string"

AutoWrap

Determines what happens when the cursor reaches the right margin. When set to yes, characters will wrap to the next line automatically when the cursor reaches the right margin of the terminal window. When set to no, the cursor is not automatically advanced when it reaches the right margin-as you type additional characters, each character overwrites the previous character until you move the cursor.

Possible Values: yes or no Default: no Sample syntax:

AutoWrap yes

BackspaceKeyIsDel

Specifies the behavior of the backspace key. When set to no, the backspace key transmits a backspace (ASCII 8) character. When set to yes, the backspace key transmits the delete (ASCII 127) character.

Possible Values: yes or no Default: no Sample syntax:

BackspaceKeyIsDel yes

CursorKeyMode

Specifies how the client handles keys on the cursor keypad. When set to no, the cursor keypad is set to normal mode-the cursor keypad keys transmit cursor escape sequences. When set to yes, the cursor keypad is set to application mode-cursor keypad keys will transmit application escape sequences.

Possible Values: yes or no Default: no Sample syntax:

CursorKeyMode yes

CursorStyle

Specifies the cursor style.

Possible String Values: Block, Blockblink, Line, Lineblink Default: Lineblink Sample syntax:

CursorStyle Block


CursorVisible

Specifies whether the cursor is visible. When set to no, the cursor is not visible in the terminal window.

Possible Values: yes or no Default: yes Sample syntax:

CursorVisible no


DisplayCols

Sets the number of columns in the terminal window.

Possible Values: The minimum is 80. The maximum usable value depends on your monitor size and display settings. Default: Determined by the current command window size. Sample syntax:

DisplayCols 120


DisplayRows

Sets the number of rows in the terminal window.

Possible Values: The minimum is 24. The maximum usable value depends on your monitor size and display settings.

Default: Determined by the current command window size. Sample syntax:

DisplayRows 30


HostCharacterSet

Specifies a non-default host character set.

Possible String Values:

PC437_English Windows1256
PC737_Greek Windows1257
PC775_Baltic Windows1258
PC850_Multilingual Korean_Johab
PC852_Slavic ISOLatin_1
PC855_Cyrillic ISOLatin_2
PC857_Turkish ISOLatin_3
PC858_Multilingual_Euro ISO_Baltic
PC860_Portuguese ISO_Cyrillic
PC861_Icelandic ISO_Arabic
PC862_Hebrew ISO_Greek
PC863_CanadianFrench ISO_Hebrew
PC864_Arabic ISOLatin_5
PC865_Nordic ISOLatin_9
PC866_Cyrillic ISO2022_JIS
PC869_ModernGreek ISO2022_JIS-Allow
PC932_Shift_JIS ISO2022_JIS-X0201_1989
PC936_SimplifiedChinese ISO2022_Korean
PC949_Korean ISO2022_SimplifiedChinese
PC950_TraditionalChinese ISO2022_TraditionalChinese
DECMultinational EUC_Japanese
UCS2 EUC_SimplifiedChinese
Windows1250 EUC_Korean
Windows1251 EUC_TraditionalChinese
Windows1252 GB2312_SimplifiedChinese
Windows1253 GB18030_SimplifiedChinese
Windows1254 UTF7
Windows1255 UTF8

Default: PC437_English Sample syntax:

HostCharacterSet EUC_Japanese


InsertMode

Specifies whether typing is in insert or replace mode. When set to no, typing replaces existing characters at the cursor location. When set to yes, new characters are inserted at the cursor location, and existing characters are moved to the right.

Possible Values: yes or no Default: no Sample syntax:

InsertMode yes


InverseVideo

Specifies whether the terminal window uses inverse video. When set to yes, foreground and background colors for all screen attributes are reversed.

Possible Values: yes or no Default: no Sample syntax:

InverseVideo yes


KeyBoardActionMode

Specifies whether the keyboard is available. When set to yes, the keyboard is locked and cannot be used.

Possible Values: yes or no Default: no Sample syntax:

KeyBoardActionMode yes


MarginBell

Determines whether a margin bell sounds. When set to yes, the bell sounds when the cursor is eight characters from the right margin. Set this setting to no to prevent sounding the margin bell.

Possible Values: yes or no Default: yes Sample syntax:

MarginBell no


NewLine

Specifies whether the client is in linefeed or newline mode. When set to no (linefeed mode), pressing the Enter key sends only a carriage return. Received linefeeds, formfeeds, and vertical tabs move the cursor down one line in the current column. When set to yes (newline mode), pressing the Enter key sends both a carriage return and a linefeed. Received formfeeds, and vertical tabs move the cursor to the first column of the next line.

Possible Values: yes or no Default: no Sample syntax:

NewLine yes


NRCSet

Use one of the supported string values to specify a different National Replacement Character set. You must also set the UseNRC keyword to yes to enable this.

Possible String Values:

British Norwegian
Finnish Portuguese
French EuropeanSpanish
CanadianFrench Swedish
German SwissGerman
Italian

Default: ASCII Sample syntax:

UseNRC yes
NRCSet British

NumericKeyPadMode

Specifies how the client handles the keys on the numeric key pad. When set to yes, the keypad is set to numeric mode --- the keypad keys transmit numeric values when pressed. When set to no, the keypad is set to application mode --- the keypad keys transmit application escape sequences such as home, up, and right.

Possible Values: yes or no Default: no Sample syntax:

NumericKeyPadMode no


OriginMode

Specifies the cursor's home position. When set to no, the cursor's home position is at the upper-left hand corner of the terminal window. When set to yes the cursor's home position is relative to the terminal windows margin settings.

Possible Values: yes or no Default: no Sample syntax:

OriginMode yes


SevenBitControls

Specifies how 8-bit C1 control codes are transmitted. When set to yes, 7-bit equivalents are transmitted for the 8-bit C1 control codes. When set to no, 8-bit C1 control codes are transmitted.

note

The default value for HostCharacterSet for the ssh command line client is PC437_English. If you want to send C1 controls, you need to set HostCharacterSet to DECMultinational or one of the ISOLatin character sets.

Possible Values: yes or no Default: yes Sample syntax:

SevenBitControls no


TerminalModel

Specifies which terminal type the client emulates.

Possible String Values: vt52, vt102, vt220 Default: vt220 Sample syntax:

TerminalModel vt102


UseNRC

When this is set to yes, you can specify a National Replacement Character set using the NRCSet keyword.

Possible Values: yes or no Default: no Sample syntax:

UseNRC yes
NRCSet British

UseANSIColor

When set to yes, ANSI color escape sequences are supported.

Possible Values: yes or no Default: yes Sample syntax:

UseANSIColor no


WarningBell

Specifies whether a warning bell sounds. When set to yes, the bell sounds when a bell character (ASCII 7) is received from the host or entered from the keyboard. Set this setting to no to prevent sounding the warning bell.

Possible Values: yes or no Default: yes Sample syntax:

WarningBell no


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